This ultra-compact, versatile, and portable 11-in-1 ratchet wrench features an ultra-low-profile head three times narrower than a traditional system and a secure, one-handed locking system to prevent socket detachment. it includes an impact- and solvent-resistant, easy-to-clean case with a self-locking metal clasp and symbol-coded parts for quick identification. dimensions: 8 to 17 mm and 19 mm