The set includes 12 thick and secure pole caps, which can meet your various practical needs. Perfect for connecting and fixing trampoline fences, can help regulate the safety net on top of the poles. It is an essential accessory when assembling the trampoline, it is more convenient and faster to install. Inner diameter: 2.5 cm/0.98 inches. The trampoline fence pole caps fit most trampolines. The replacement pole caps for trampoline fences are made of quality plastic material, durable and practical for long-term use. Description: The replacement pole caps for trampoline fences are made of quality plastic material, durable and practical for long-term use. It is an essential accessory when assembling the trampoline, it is more convenient and faster to install. Perfect for connecting and fixing trampoline fences, can help regulate the safety net on top of the poles. Inner diameter: 2.5 cm/0.98 inches. The trampoline fence pole caps fit most trampolines. The set includes 12 thick and secure pole caps, which can meet your various practical needs. Specification: Inner diameter: 0.98 inches Height: 8.5 cm Width: 5 cm Size chart: 8.5 cm/3.35 inches Package includes: 12 trampoline pole caps.