The Suunto Black Silicone Extension Strap is designed for divers who need extra length to wear their dive computer over a wetsuit or dry suit. Compatible with Suunto Ocean, D6i Novo, D4i Novo, D4i, and D4 models, this flexible and durable strap ensures a secure and comfortable fit during every dive. Made from high-quality silicone, it offers excellent resistance to the elements while maintaining a soft feel and dependable performance.