Foot Tubes are a small sleeve made of a knit material and designed to slip over a shoe or sneaker at the ball of the foot area. They cause the shoe to move faster on a slow floor. The manufacturer adds this caution: "Warning: Use with Caution. Stretching Foot Tubes over shoes will significantly change the shoes' traction on the floor. Be very careful to test slickness. Use of this product may create a slip and fall hazard."
Foot Tubes are available in black, tan, or white. Also now purple and red! One size fits most. Made in the USA.