HomeMade Boom Block

Hi,
Just make some boomblock for multicopter built. It take to much time and money to order from US.
I did it all size, the material is  PA66: strong and good damping for vibration.
Some pics to share with you all.
- Tube 21.5 size, weight 4.5g/pcs, 4 pcs weight 18 grams as picture said.

- Tube 16mm size, weight 3.5g/pcs, 4 pcs weight 15 grams as picture said.

- Tube squad ture 12x12mm, weight 1.5g/pcs, 4 pcs weight 15 grams as picture said.

- Tube round 12mm or squad 10x10mm , weight 1.5 grams/pcs,

How many do I have?

Very good price.