Purchased in August 2025 from the official B.box website. Used a few times when going out. The following is a quote: Details Material: Silicone ★Made with BPA, phthalate, and PVC-free materials. Size: H24 x W12.4cm (Connected length: 67.5mm) Attachable weight: Up to 400g ※To increase the strength to prevent drops, the connection part is made firmly. If it is difficult to attach, you can attach it by pulling the hole part while pushing it onto the stopper part.