These Big Boat Captive Bearing Traveler Cars are available with factory installed purchase configurations of 1:1 thru 4:1 for traveler car adjustment. You can increase the purchase on an existing car (up to a max. of 4:1) using the 32 mm Purchase Upgrade Kits (T32K or T32K.HL). Proper choice of purchase allows easy adjustment of the car using a single line and no winch. High-strength Torlon ball bearings run on machined, Hardkote-anodized, Teflon impregnated races for smooth trimming and easing. The cars in this group have a simple shackle for attaching the mainsheet block to the car. The car is designed so it is possible to upgrade the shackle to a stand-up toggle, if desired. Use with 32 mm CB Track Available in standard and high-load versions to handle mainsheet loads on boats from 32 ft to 50 ft (9.5 to 15 m) Solid 6061-T aluminum body for light weight, strength, and durability Captive bearings for easy loading and maintenance Please call us if you have questions regarding gear selection for your boat