METAL POWER TUBE 4 color (3/4/5mm) - LIGHT GOLD / Small (3mm)

This product contains a spring. Each product consists of one spring and 20 power tubes.

• Small - 3mm
• Medium - 4mm
• Large - 5mm

3mm (Head) and 4mm (Waist) are mainly used on the HG scale.

4mm (Head) and 5mm (Waist) are mainly used on the MG scale.