The Boa Gym Climbing Rope features a polyester sheath resistant to abrasion and a double-braid construction for a smooth surface that allows clean clipping. It has Thermo Shield treatment to maintain suppleness, and a bonded sheath and core to reduce slippage. The 3D lap coiling prevents tangles, and a center mark helps find the midpoint quickly. Its 40m length suits most gym lead walls. The chemical-resistant sheath endures hold-cleaning solvents.