Leather grips are designed to fit the slide handles of most small and some medium bore trombones - see below for measurements. Does not fit Bach 36. Sold as a set of two pieces only. General dimensions: • Left Handle length: 2-3/4 inches (7.0 cm) • Left Tube Circumference: 2-5/8 inches (6.7 cm) • Right Handle Length: 2-7/8 inches (7.3 cm) • Right Tube Circumference: 2 inches (5.1 cm)