The 40 piece kit comprises 20 single hooks and 15 double hooks plus one each spanner holder, drill holder, hex key holder, screwdriver holder and saw holder. These hooks and holders quickly and securely fix in seconds to the bott Perfo panels using the Perfolock tool (supplied). Repositioning at any time is just as quick and simple. All the items are zinc plated steel for a long, corrosion-resistant life. All the hook ends have a safety cap. Suitable for 1.5m and 2.0m Perfo panels. Made in UK. No Panels included.