Newly Upgraded Handrail After many tests NEWAN Trampoline perfectly integrates the handrail with stainless steel to make it more stable and solid.The height of the armrest can be adjusted at any height within the 43in-53in (110CM-135CM) range, it can be at any height you want. Stable Structural Design The Silent Trampoline features a hexagonal design paired with an abrasion-resistant, highly resilient oxford fabric,that provides greater surface and support.Makes the trampoline stronger and safer, comes with non-slip rubber pads for better grip and protects the floor to reduce noise. HIGH QUALITY NEWAN Exercise Rebounder has been safety tested and CE marked. The main frame is made of high quality steel for maximum safety, with six legs to make the trampoline not easy to tilt, safe, reliable, strong and stable. Comfortable Jumping Experience The NEWAN Exercise Rebounder features a stand-alone bungee core design,with 42 thickened ropes which are 0.32"(8MM) of diameter provides joint-friendly suspension,soft but strong bounce back, provides silent and safely bounce back, reduces noise in maximum extent, affords more stability, and gives you a great jumping experience. Special tool is included for assembly.