High Quality Cork 600mm Long x 10mm Wide x 4mm Thick 18 Meters Coverage Length 30 Lengths Per Pack Cork Expansion Flooring Gap Insert Strips The Cork expansion flooring gap insert strips by SPD UK come in a convenient 30-pack, with a total coverage length of 18m. These beige-coloured strips are designed to fill gaps in cork expansion flooring, ensuring a seamless and professional finish in any room. DIY enthusiasts can easily install these gap inserts to create a tidy and elegant look in their home.