Specifications:

• Type 3: Cube Prism
• Type 2: Cube Optical Glass Prism
• Type 1: Optical Glass Prism
• Surface: Cube Prism
• Size: 23 * 23 * 23mm / 0.9 * 0.9 * 0.9in
• Shape: Irregular Shape
• Power supply: 1* cr2450 button battery
• Model Number: Prism
• Material: K9 optical glass
• Item: Cube Stained Glass
• Flatness: six sides
• Dimension Tolerance: Cube Optical Glass Prism
• Brand Name: Hilitand
• Angle Tolerance: Cube Prism