Rubber Gym Roll - Geneflex Color:Black and has the longest lasting

and has the longest lasting color of any other material

No other dock bumper compares

Can be mounted directly to the piling or dock

Each mat weighs 90 lbs

4' length x 3" wide x 4" depth/thickness 14 lbs

Rubber Gym Roll - Geneflex Color:Black and has the longest lastingThe 4' x 4' x 8mm roll covers up to 16 sq. ft. The 4' x 6' x 8mm roll covers up to 24 sq. ft. The 4' x 10' x 8mm roll covers up to 40 sq. ft. The 4' x 15' x 8mm roll covers up to 60 sq. ft. The 4' x 20' x 8mm roll covers up to 80 sq. ft. Multi purpose rubber surfacing provides a safe, supportive foundation for any exercise space Perfect for accommodating weight lifting, martial arts, cheerleading, dancing, yoga, and much more