Model Number:balloon tool
Balloon chain length : 5 meter
Single hole balloon chain: about 400 holes
Double hole balloon chain: 110 double holes
Step to use double hole chian.
1. put the first balloon in the big hole, then move balloon to the small hole.
2. put the second balloon in the big hole, opposite direction.
3. balloon could also be fixed via ropes, knotted through holes.
4. use tools or adhesive tape to diy the model you want.