The BELLAMI Infinity Weft is the industry's longest, densest, most versatile method. It has a 33% slimmer design with a 20% increase in density compared to the Hand-Tied Weft. You can easily cut the Infinity Weft without worrying about itchy return hair. With the fastest drying time of any method and a water-resistant sealant, this highly customizable weft is perfect for all hair types. Hair type: Cuticle Remy Hair Application: 1.5-3 hours Maintenance/Move up: every 4-6 weeks Life span: 6-12 months with BELLAMI's 3-month warranty* Care: Wash hair with lukewarm water and use sulfate-free shampoo and conditioner. Use a water-based leave-in conditioner to keep hair soft and hydrated. Avoid the use of oils or silicon-based products near the attachment points. Always apply heat protectant before using hot tools. Do not apply direct heat to the spine. Maintain a distance of 1-2" when using hot tools. Use cool or warm temperatures when blow drying near the spine; avoid high heat. INFINITY WEFT 101: Is the BELLAMI Infinity Weft a genius weft? The BELLAMI Infinity Weft utilizes a similar technology. It is uniquely reinforced with a water-resistant sealant and offers a 45" width making it the longest, densest, and most versatile option on the market.