Vinyl float bag featuring twist valves, anchor point, and long fill tube. The 2.0 or small triangular bag works well for both the bow and stern of many small recreational kayaks. It also works well for the sterns of Eskimo and Prijon whitewater kayaks made without center pillars. 
The 4.0 Or medium fits into the stern (rear) of many moderate-sized sit-inside recreational kayaks. 
Listed dimension are for inflated bag. 
Please note these are sold as a single bag and NOT a pair.
2.0 (Small)
Length: 23"
Width: 26"
4.0 (Medium)
Length: 35"
Width: 28"