Menowa ST penspinning pen is popular model with high inertia. Great for power tricks. 

• Weight: 22 g 
• Length: 22,5 cm
• Balanced: yes
• Write ability: no

Compound:

• Body: Crayola ST (white)
• Tips: Zebra Airfit tips
• Grips: Dr.Grip, Anyball, silicon rings
• Rings: Zebra Airfit (metal)