These very well made shaker inserts are made from food grade acrylic for the body, with chrome plated brass caps that thread onto the body.
Tapered for easy insertion into any material you choose for the shaker housing.
These inserts require a 26mm or 1 inch hole for insertion, 55 mm / 2.1 inches deep.
Total height with cap on: 62.4 mm / 2.48 inches