Slip trailing bottles are traditionally used by potters and ceramists to flow slips onto ceramic pieces to create raised decorative designs. They can also be used to apply glazes, engobes and underglazes for a variety of effects. The Kemper Slip Trailing Bottle is supplied with 2 spouts: one round and one ribbon shaped for a variety of decorating possibilities. A fitted cap for each spout is included. 4-oz capacity.