Trampoline cover – Attach the trampoline safety net to the top of the pole (safety net not included). Replacement part – Pole cover designed for trampoline poles with a diameter of 25 mm. Durable material – Trampoline cover cap secures safety net straps and helps prevent pole slippage. Easy installation – Features a special hook for simple attachment of the net to the housing rod. Helps secure your trampoline safety net to the top of the poles. Package includes – 12 blue trampoline end caps, easy to use and replace. Color: Blue Material: Plastic Package Contents: 12 x Trampoline End Caps Note: This package includes only the items listed above; other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.