{"product_id":"4-d-ring-binder-mechanisms-a4-a5-options","title":"4 D Ring Binder Mechanisms A4 \u0026 A5 Options","description":"\u003cstyle\u003e\na {\n    text-decoration: none;\n    color: #464feb;\n}\ntr th, tr td {\n    border: 1px solid #e6e6e6;\n}\ntr th {\n    background-color: #f5f5f5;\n}\n\u003c\/style\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe 4 D Ring Binder Mechanism is a robust D‑shape ring mechanism, engineered for riveting securely to the back cover of binders and folders. Designed for professional stationery manufacturing and binder production, this mechanism offers smooth operation, strong page retention, and long‑lasting performance.\u003c\/p\u003e\n\u003cp\u003eFeaturing four D‑shaped rings, this mechanism range is suitable for both A4 and A5 sheet formats, making it ideal for office binders, presentation folders, training manuals, and bespoke stationery products. The D‑ring profile allows documents to sit flatter against the spine, improving organisation and maximising usable sheet capacity compared to round ring mechanisms.\u003c\/p\u003e\n\u003cp\u003eThis range is widely used by stationery manufacturers, printers, and trade suppliers requiring reliable, production‑ready binder components.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003eRING MECH VARIATIONS\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e4 D Ring Mechanism – A4 Sheets\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRing Spacing: 80‑80‑80mm\u003c\/li\u003e\n\u003cli\u003eApplication\u003cstrong\u003e:\u003c\/strong\u003e A4 binders and folders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e4 D Ring Mechanism – A5 Sheets\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRing Spacing: 45‑65‑45mm\u003c\/li\u003e\n\u003cli\u003eApplication: A5 binders and compact folders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll variants are designed specifically for rivet fixing to the rear cover of binders.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e 4 D ring binder mechanism\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Shape:\u003c\/strong\u003e D‑shaped\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Count:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Rivet‑mounted to back cover\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSheet Compatibility:\u003c\/strong\u003e A4, A5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Binders, folders, stationery manufacturing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Flexible Reinforcements","offers":[{"title":"4-D-20 (21) A5","offer_id":56738283258236,"sku":"DMEC0017","price":0.78,"currency_code":"GBP","in_stock":true},{"title":"4-D-25 (21) A5","offer_id":56738283291004,"sku":"DMEC0046","price":0.8,"currency_code":"GBP","in_stock":true},{"title":"4-D-40 (27) A5","offer_id":56738283323772,"sku":"DMEC0021","price":1.05,"currency_code":"GBP","in_stock":true},{"title":"4-D-52 (27) A5","offer_id":56738283356540,"sku":"DMEC0040","price":1.2,"currency_code":"GBP","in_stock":true},{"title":"4-D-65 (38) A5","offer_id":56738283389308,"sku":"DMEC0024","price":2.0,"currency_code":"GBP","in_stock":true},{"title":"4-D-16 (21) A4","offer_id":56738283454844,"sku":"DMEC0026","price":0.5,"currency_code":"GBP","in_stock":true},{"title":"4-D-20 (21) A4","offer_id":56738283487612,"sku":"DMEC0027","price":0.5,"currency_code":"GBP","in_stock":true},{"title":"4-D-25 (21) A4","offer_id":56738283520380,"sku":"DMEC0028","price":0.52,"currency_code":"GBP","in_stock":true},{"title":"4-D-30 (21) A4","offer_id":56738283553148,"sku":"DMEC0029","price":0.55,"currency_code":"GBP","in_stock":true},{"title":"4-D-30 (27) A4","offer_id":56738283585916,"sku":"DMEC0030","price":0.7,"currency_code":"GBP","in_stock":true},{"title":"4-D-35 (27) A4","offer_id":56738283618684,"sku":"DMEC0031","price":0.77,"currency_code":"GBP","in_stock":true},{"title":"4-D-40 (27) A4","offer_id":56738283651452,"sku":"DMEC0032","price":0.77,"currency_code":"GBP","in_stock":true},{"title":"4-D-45 (27) A4","offer_id":56738283684220,"sku":"DMEC0033","price":0.95,"currency_code":"GBP","in_stock":true},{"title":"4-D-50 (27) A4","offer_id":56738283716988,"sku":"DMEC0034","price":1.1,"currency_code":"GBP","in_stock":true},{"title":"4-D-55 (38) CRH A4","offer_id":56738283749756,"sku":"DMEC0036","price":2.0,"currency_code":"GBP","in_stock":true},{"title":"4-D-65 (38) A4","offer_id":56738283782524,"sku":"DMEC0038","price":2.1,"currency_code":"GBP","in_stock":true},{"title":"4-D-65 (38) CRH A4","offer_id":56738283815292,"sku":"DMEC0039","price":2.1,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/1487\/8104\/files\/POLYPROP_2_1042c1f8-3b3b-4257-a395-1147f0343850.jpg?v=1778075402","url":"https:\/\/www.flexible-reinforcements.co.uk\/products\/4-d-ring-binder-mechanisms-a4-a5-options","provider":"Flexible Reinforcements","version":"1.0","type":"link"}