Made from sturdy PLA plastic. Stepped design provides quick and accurate measurement vs conical designs. DOES NOT DAMAGE JEWELRY unlike metal sizers.
Manufactured in the USA
Lifetime warranty
Much better than folding plastic sheet mandrels that keep disintegrating!
Mandrels provide direct and accurate measurements of inner circumeference when measuring objects that are meant to be circular such as bracelets or necklaces. For these items, do not use straight rulers as they do not factor in the inner circumference of an object and will give longer, deceptively false measurements. Mandrels are also better than bead boards as bead boards do not take into consideration the effect of bead size on a bracelet's inner circumerference. Avoid upset customers and measure with a mandrel!
