EVANS Hydraulic Bass Drumhead Glass 22 in.

Evans clear Hydraulic series features a thin film of oil between two plies of thin film offering maximum durability, and a fat, deep and short sound pioneered by early 70's rock and roll. Hydraulics are famously easy to tune, making them a perfect fix for troublesome drums and players with little tuning experience. For over 60 years, Evans has been an innovator in drumhead manufacturing and design. As the creator of the first synthetic drumhead and other revolutionary products such as EMAD, Hydraulics, and the UV1 series, Evans drumheads are designed with the intent of solving problems for drummers. Regarded for high quality and consistency all Evans drumheads are made in the USA and feature Level 360 Technology., 22" drum head with a thin layer of oil between two plies of clear film to suppress unwanted overtones, Two plies offer consistency and durability for longer playing time, A fat, deep and short sound pioneered by early 70's rock and roll, Also available in blue and black versions, The only oil-filled drum head on the market

. Evans 22" Glass Hydraulic Bass Drum Head