Clever Standard brings innovative and unique products to the bike market and their FAV branded Tubeless Sealant is no exception. With a formula that's Latex-Free and Ammonia-Free, the FAV Tubeless Sealant provides excellent air retention and is said to repair holes up to 8mm and provide effective puncture repair for up to 1000km (3-5months) before topping up is required. If you're a keen winter rider, you'll be happy to know that it won't freeze until -20°C too, saving your poor fingers from a tube swap in the cold. Available in 500mL and 1L squeezable bottles that feature a nozzled lid designed to be pressed over your valve stem and screwed on as well as a built-in Presta valve core remover. Who's this item for: Riders wanting an environmentally friendly, long-lasting sealant. Tyre compatibility: The Clever Standard tubeless sealant is suitable for all tubeless rated tyres. Lifespan: Clever Standard rate the sealant as not needing top-up for up to 1000km or 3-5 months depending on how often and how far you ride. Usable temperature range: -20°C to +40°C Hole sealing size: Said to repair punctures up to 8mm in MTB tyres and 6mm in road tyres. Includes applicator lid/syringe: Yes. The lid features a nozzle to interface with your valve stem and a built-in Presta valve core remover. Sealing method: Being Latex-free and Ammonia-free, Clever Standard tubeless sealant is a more viscous (thicker) liquid, containing a wide variety of sealing particles, designed to physically plug punctures before setting. Contains Ammonia: No, it does not. Ease of cleaning scale (higher is better) 1-10: 6