Coming Soon: SOG 15-61-02-57. This American crafted Pentagon OTF is set to roll out in early Fall 2021. It has been engineered with precision and diligence to cater to the sophisticated requirements of users who need a trustworthy, one-hand operated, quick-launch knife.The Pentagon OTF features SOG\'s innovative Dynamic Lock-up System which takes the reliability of OTF knives to a new level in terms of blade lock-up strength. Couple this with a Cryo S35VN blade and a sturdy hard-anodized aluminum handle, the durability of this knife is unmatched.The Pentagon OTF delivers unrivaled OTF technology specifically for professional users who demand the finest steel and technology. Product # 15-61-02-57.