DABPRESS 30mm SS Hammer Styled Pollen Press ( Flower & Hash ) - Works with 2x4" Filters, Loading 7g Materials Features: Hash & Flower - The cylinder pre-press mold is well suited to compress flowers, hash, etc. 0.15mm Gap - Small gap cylinder prepress mold also works great with kief, hash, and flowers. Hammer Styled Mold - After loading the material and insert the hammer nail, and strike it with a rubber mallet! PVC Sheet Included - Easy to insert pucks into filter bags with PVC sheet attached. Save Rosin Filter - Double squashes by cutting 2x4.5" rosin bags into half for flower if pairing it with cylinder mold. Specifications:  Item No.: dp-pm30h Material: 304 Stainless Steel Inner Diameter: 1.18 inch (30mm) Outer Diameter: 1.46" Height: 3.38" How to Avoid Filter Bags from Blowing out?  Remove excess stems from flowers. Use less material in your filter bag. Preheating your material first to get it melty before you begin to apply pressure. Apply the pressure more slowly. Bench Vise Hammer Pollen Presses