Natural rubber. Winding rubber bands for professional beauty use, with strong tension and excellent durability. The rubber surface is silicone-treated, repelling cold solutions and reducing stickiness. Winding / Rubber bands / Beauty / Professional / Silicone treatment / Beauty salon / Professional use. The box will be flattened for shipping. Product Specifications Product Name: Flora Pro Beauty Band Boxed Perm Rubber Model Number: pro-beautyband-box Category: New ■ Material: Natural rubber ■ Capacity: 100g (NET.) ■ Made in Japan ■ Rubber Size: Blue (#12: Folded length 40mm / Diameter 25mm) * Folded length: The total length of the rubber band when folded. * Diameter: The inner diameter when the rubber band is made into a concentric circle.