Product Material: PP Size: 16 cm Color: black + white Quantity: 10 pcs Package content: 10 pcs * Mask hook 1.Relieve pain: mask holder at the back of the head. Compatible with most ear hook masks. You can change wearing time to reduce stress and ear pain 2.High quality: our mask holder is made of high quality silicone material, comfortable that will not tear or change its shape when worn for a long time. It can effectively reduce the strain on the ears 3.Perfect fit: adjustable mask extension cable: the mask holders are flowing adjustable . In addition, they are also stretchy thanks to the elastane. This mask holder is suitable for people of all ages. 4.Easy to use: mask holder very easy to use, the extension strap can be adjusted, attach the ear line to the neck or back of the head, hook one side of the ear line and repeat the process on the other side. Put the extension strap in the most comfortable position and the process is complete. 5.Widely used: this mask holder back of the head is ideal for all kinds of professions such as doctors, office workers, laboratory staff, etc. Also suitable for adults and children. A practical device required for home use or for going out with a mask protector.