3Pcs Lab Flask Support Cork Stand 100mm Diameter Round Bottom Holder for 150ml-1000ml Flasks Laboratory Flask Pad Support Holder Description: Providing excellent support to 150ml - 1000ml round bottom flasks, convenient and practical. Made of cork material, light weight, Good elasticity, Large Friction coefficient, Strong heat and electrical insulation. Durable and sturdy, its funnel design allows for accommodate different size flasks. Perfect for holding your flasks or other spherical bottom containers from falling easily. Specification: Material: Cork Use for Flasks: 150ml - 1000ml Inner Diameter: 52mm / 2.05inch Dimension: 100 x 30mm / 3.94 x 1.18inch (D*H) Package Content: 3 x Flask Support Stand _x000D_