Plastic flasks for silicone and reversible duplicating materials. With the 3 flasks of different heights, various model sizes can be duplicated economically. Internal height of flask top: small 35 mm medium 43 mm large 51 mm Bases fit all top units. Contents: 1 x Siliform duplicating flask, small, clear, Internal height of flask top 35 mm 1 x Siliform duplicating flask, medium, clear, Internal height of flask top 43 mm 1 x Siliform duplicating flask, large, clear, Internal height of flask top 51 mm 3 x rema® Form base, smooth