Teardrop bead roller - made for use with polymer clay

This is a bead roller printed with a 3D printer. All the bead rollers are 5cm long and each one makes a different size bead

The rollers make the following teardrop bead sizes
3cm x 1.5cm
2.5cm (1") x 1.3cm
2cm x 1cm
1.5cm x 8mm

Full demo video here https://www.youtube.com/watch?v=sSKOX9tLYZ8

Color may vary