New streamlined pipe joints now include Pearl s new clam shell style collars on the 930 series. The base of each stand has received an upgrade with the addition of the new double braced Trident Design Tripod which prohibits damage to the stand s pipe from excess torque. The S930D Model features a drop basket for deeper snare drums. Height: 18.11 - 25.59 (46-65cm) Basket: 12 -14 drums Tilter: Uni-Lock Arm Tips: Suspension Rubber Tips Legs: SureStrut/Double Braced Lugs Leg Tips: Rubber