YAMIPROBI Slackline Pulley Kit - Professional Slackline Accessories for Ninja Warrior & Backyard Obstacle Courses - Adjustable Zipline System for Kids & Adults - Perfect for Outdoor Training, Playgrounds & Backyard Fun (Patents Pending)

Bearings The bearings is made of stainless steel for maximum strength. 6 sealed ball bearings can provide super smooth driving. Material Selected Premium 304 Stainless Steel ,Study, Solid and Anti-rust. strong and durable, light in weight ! Loading Weight The Slackline Pulley can support a weight of up to 30kN