Foot Tubes (also sometimes called shoe socks) 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.