CLIP-STEP R13 tread cover retrofit set, for extending step ladders, pack of 12. Supplied = assembled. Weight = 4.1 kg. Weight per item = 0.34 kg. Product type = accessories for ladders. Tread cover to ensure safe ascent. Slip resistance category R13. High quality workmanship. Easy to retrofit. High quality workmanship. CLIP-STEP R13 retrofit set for 2-part extending step ladders. The CLIP-STEP R13 tread cover is a certified, anti-slip cover for the 2-part extending step ladder. The CLIP-STEP R13 tread cover features a plastic profile with aluminium checker plate and therefore complies with the specifications for category R13 and was classified as V6-compliant for its displacement area. In wet or oily work environments in particular, the CLIP-STEP R13 tread cover provides an additional increase in occupational safety. The tread cover fits perfectly when it is clipped over the full surface and can be removed from the ladder without leaving residue or damage.