Upper Bounce 13' Trampoline Replacement Enclosure Safety Net Fits 13 FT. Round Frames Using 8 Poles or 4 Arches (poles not included) Creates a fun jumping experience without limiting visibility Ensures maximum safety by connecting The Net between the pad and jumping mat Highly durable Terylene-Quality Safety Net and easy to install Dual closure entry with zipper and buckles Flexible and Adjustable For 8 Straight Poles Or 4 arches