The newly developed line with recess is ideal for simple self-installation without nails. Very good grip due to reinforce and extended barbed legs. Non-slip surface, excellent ball bounce behavior. A set of of 4 cm and 5 cm consists of 85 rods à 4 cm and 8 rods à 5 cm, each 1.60 m long. A 5 cm set consists of 93 rods of 5 cm, 1.60 m long. Each set contains 100 T-connectors. Complying with international regulations. White, set of 4+5 cm or set of 5 cm.