Foam clasps. Foam heels made of comfortable 4D foam and breathable polyester fabric. Lightweight, soft heels help reduce the size of shoes, eliminate slack in the shoe, and after cutting, you can perfectly fit them to the shoe. They prevent heel abrasions. They have one side covered with glue, so they do not slide in the shoe when walking, just tear off the protective film and place in the back of the shoe. The clasps come in two types of graves 0,5 cm and 1 cm. Size Chart: Length: 11,5 cm Width: 8 cm Thickness: 0,5 cm Length: 11,5 cm Width: 8 cm Thickness: 1 cm Technical parameter Product code: A067_03 - Fasteners Every shoe and every foot is inna. Depending on your needs, you can choose the perfect thickness not only to compensate for the difference in size, but at the same time to create a pillow that further increases wearing comfort. Advantages: They prevent the heel from slipping out of the shoe. Filling the free space in the shoe. Protect your feet from abrasion. Heel protection against abrasion. Pasted into a shoe. cut. Flexible, soft. Product code: A067_03 - Fasteners How to use: To properly place heels in shoes you need to: Try the heel on the shoe and then cut it accordingly. Remove the protective film from the back of the insole and place the heel in the back of the shoe. After sticking it to the shoe, press it down so that it fits well in any place. Wait a few minutes for the glue to start working. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!