Upgrade your snare drum with the Independent Drum Lab Strainers and Butt Plates! The strainer is smooth, light, simple, and reliable. Everything a strainer should be, nothing it shouldn't. It is equipped with slotted mounting holes that adjust from 1" to 2.5" hole spacing with clearance for a center bead. This strainer comes with your choice of: -Universal Butt Plate featuring the Adjustable Spacing System (A.S.S.) with slotted mounting holes adjusting from 1.1-2.8? or -The standard Vertical Butt Plate with 12mm vertical spacing. These are great for builders or as an upgrade to your existing snare. Excellent design, finish, and quality.