---22 colours available in 13mm or 20mm ---Single Sheets & Trade Packs ---Strong 3M adhesive - won't fall off ---0.24mm thick - blends in perfectly --- Ordering options (scroll down for technical information): ---Order trade packs of 13mm KwikCaps. Total 630 caps ---Order trade packs of 20mm KwikCaps. Total 240 caps ---Order single sheets of 13mm KwikCaps. 126 caps per sheet ---Order single sheets of 20mm KwikCaps. 54 caps per sheet KwikCaps are exclusively created and distributed by Bedrooms Plus Ltd. Complete any job to a professional standard with KwikCaps Self Adhesive screw cover caps. Covers screw heads, cams and other holes in seconds. KwikCaps are made from strong PVC and have an extremely high quality 3M adhesive gum layer. Caps are available in 13mm and 20mm diameters, and with a thickness of only 0.