Attach the LockNLoad™ platform directly to the Yakima® TimberLine™ and SkyLine™ towers.Use these adapters to attach the LockNLoad™ platform directly to the Yakima® TimberLine™ and SkyLine™ towers. They eliminate the need for a traditional crossbar, and put the platform lower and closer to the roof—giving your rig a clean, customized look. One pair of LockNLoad SL Adapters required for each pair of towers. Check your vehicle fit to verify requirements.