This means basically that BOTH sides of the BONES HardCore Bushing are resisting your turning force

dust and dirt build up - super fast sound and spin

The double strapping gives you a secure fit around your legs

Ave Weight - 379g

187 Pro Derby Knee Pads Black/Black Colour:Black/Black This means basically that BOTHThe 187 Pro Derby Knee Pads are designed specifically for Roller Derby competitors and feature superior flex and lightweight protection. 187 Killer Pads have been designing and manufacturing protective gear for over a decade. Founded by long time skateboarder Vinton Pacetti in a family owned upholstery shop, 187 has become the number one choice for skateboarders worldwide. Features: ROLLER DERBY SPECIFIC: Low profile and less bulk with a high level of