PBS-1450 Flexible Plumbertool 1/4" X 50' Right Hand Wound Non-Reinforced Basin Head Snake
1/4" and 5/16" diameter only. The Basin Head is so named because it is intended to thread through the basin strainer of a sink tub or shower. Then it must bend through a trap and extra flexibility is needed. The right hand winding causes the snake to loosen and limber as it is rotated clockwise.