SpinOlution bobbins are made from Baltic birch and are shatterproof. Each one is glued by hand and tested for durability and function.
Please note: Golden Whorl SpinOlution Models have larger flyer rod sizes to stabilize the flyer when spinning at high speeds. Please reference the diameter of your flyer rod when ordering bobbins. If you have any questions about your bobbin size, feel free to contact us. 3/8" bobbins have a black bushing in the front of the bobbin. 1/4" rods have a white bushing in the front of the bobbin.
SpinOlution will replace any bobbin that breaks within 1 year of purchase; if your bobbin breaks, email a picture to email@example.com with your shipping address and proof of purchase to receive a free replacement.