Check the listing for details. 50 X High Thickness Punched Sleeves 22x30 For Ring Binders Documents. Condition: New. Listed at 76.95 USD. 50 x High Thick Perforated Envelopes 22x30 for Ring Binder Documents_ This set of 50 thick perforated envelopes is ideal for organizing and protecting your documents. The envelopes, measuring 22x30 cm, are designed to fit perfectly into ring binders, ensuring easy consultation and optimal protection of your documents. Made from high quality materials, these envelopes offer excellent durability and are perfect for storing important documents or for everyday use in the office or home. Each envelope features standardized holes for trouble-free insertion into ring binders. Technical specifications: Thickness: High (for greater resistance) Suitable for ring binders Material: high quality plastic Weight: approximately 1.2 kg (for the set of 50 envelopes) Available at Simpletek in Arezzo. Contact.