The Safety Enclosure has 6 padded steel poles for safety and includes the following features Pole caps are fastened by finger bolts for stability Finely knit mesh so fingers and toes won't pierce the netting 'Tied' entrance door for added safety and security No additional tools needed and no drills required Meets and exceeds all ASTM safety requirements This enclosure can be used with the 12' Safety Band Trampoline only sold separately Please note that this enclosure is ONLY compatible with the Variflex trampoline noted above. The manufacturer will not accept liability for injuries or accidents caused as a result of using this enclosure with any other brand of trampoline.