Use the NRS Universal Foam Canoe Block to protect your canoe and the top of your vehicle during transport.
Features • Durable minicell foam cushions your boat and protects your vehicle • The slot in the foam blocks can pop onto the canoe gunwales(two per side). Then the flat non-skid surface is placed directly on the vehicle roof
Specifications • Weight: 9oz • Dimensions: 4"W x 4"D x 7"L, Molded channel is 1 1/2" in diameter