PRODUCT DETAILS - 2 x 90 x 90 mm ceiling hooks, 8 x 76 mm screws for concrete application, 2 x carabiners. 2 year warranty. MATERIAL - These ceiling hooks are made of high quality 304 stainless steel. No rust, corrosion resistance, high hardness, rustproof, durable in use. Load capacity up to 400 kg. MULTIPLE USE - Ceiling hooks for hanging chairs, hanging lamps, swing, hammock, punching bag, sling trainer, yoga towel, sling trainer, hanging seat. EASY TO INSTALL - The screws we offer are designed for concrete which is safe and easy to install. It can be installed in minutes. NOTE: 1. The size of the product is measured manually, and there will be an error of 2-3mm due to factors such as different measurement tools and measurement methods. 2. This product is all taken in kind, but due to differences in photography, lighting, color deviation, and personal understanding of color. As a result, there may be some color difference between the actual product and the photo, and the color is subject to the actual product. 3. Please take good care of our products