Occasional use of these pellets will help keep your air rifle working properly between cleanings. Simply fire a felt pellet as you would a normal pellet to remove dirt, lead and fouling from the barrel. Maintain the performance and accuracy of your air gun barrel.Specifications and Features: Dimensions: 3.5 x 1.13 x 5.38 in Caliber: 0.22 Types: Cleaning Cotton Pellets Use: Use by firing in place of standard pellet Quantity: 100