Palm-sized durable ruler|Multifunctional |Parabolic curves |Compass |Geometry and spirals|Protractor for beginners|Do it yourself
by Ddiin
$135,705
2262%
Raised on Kickstarter
· Goal: $6,000
- ↗ Trending toward
- $370,251at this pace
- Backers
- 154
- Avg pledge
- $881.20
- Daily backers
- 12
- Daily funding
- $10,438.85