Extruded and CNC-machined from 6061-T6 aluminum, Box Two™ Stem Spacer Kits feature a lightweight design. Weights range from 0.24 to 0.29 ounces (6.7 to 8.2 grams), depending on the size. Sold in packs of five.

• Inner (Ø) 1" 
• Height 1mm, 3mm, 5mm, 10mm
• Material 6061-T6 Aluminum 6061-T6 Aluminum
• Process Extruded Extruded
• Weight 6.7 grams / 0.24 ounces