These tough nylon 4.8mm x 300mm cable ties are ideal for attaching our BirdBan spikes to pipes, tree branches and other tubular structures such as street light brackets, signage frameworks etc. The maximum diameter these can be used on is 76mm. For larger diameters simply connect two ties together. Manufactured from Nylon 66 and approved to UL 94V-2. They are resistant to petrol, oil grease and alkalis. Packs of 100.