Specification NameDouble Trolley PulleyColorBlueMaterialAluminum alloySize8 5x10 4cm 3 35x4 09Rope Size13mmStrength25kNFeatures Double bearing design more stable and safety than normal pulley Rope Size 13mm Super smoothly Concave pulleypolished surface for smoothly use with no friction clogging phenomenon which provides great smooth rotation and efficient performance Professional material High strength stainless steel ball bearing and aluminum body Breaking Strength up to 25 kN The hole for easily clipping carabiners double steel sheaves could compatible with textile rope Double trolley pulley great for back yard zip line setting mountaineering tyrolean rescue applications or other rope access Package Included 1 x Double Trolley PulleyNotes Due to different producing batches product details might be a little different If you minding the difference please buy it carefully Due to the different display and different light the picture may not reflect the actual color of the item Thanks for your understanding Tips For rock climbing and mountaineering You are responsible for your own actions and decisions Familarize yourself with this harnesss capabilities and limitations We recommend every climber seek qualified instruction Please have all equipment safety checked by a qualified professional prior to use Upon receipt of the goods please check if there is damage or breakage please do not use And contact us as soon as possible Thank you