RV / Caravan Toilet Door Lock — Adjustable 18–35 mm, Durable Plastic, Rotary Knob Key benefits Simple privacy and security: prevents accidental opening of toilet or small cabin doors in RVs, caravans, yachts and boats. Quick installation and reliable operation: adjustable to common door thicknesses (18–35 mm) and operated with a secure rotary knob for fast locking/unlocking. Durable and low-maintenance: made from quality plastic that resists deformation, damage and wear for long service life. Main features Compatibility: fits doors with a thickness between 18 mm and 35 mm. Note: measure your door thickness before purchase to ensure fit. Material: high-quality plastic construction that is strong, wear-resistant and not prone to warping or breakage. Operation: secure rotary knob mechanism — turn to lock or unlock the door easily and intuitively. Installation: designed for simple, convenient installation on interior doors of small living spaces. Practical use scenarios Motorhome or caravan toilet: keep the bathroom door securely closed while driving and ensure privacy when parked. Yacht or boat heads: compact, corrosion-resistant plastic lock suitable for marine interiors where a compact, reliable latch is needed. Small interior doors: suitable for bedroom, bathroom or galley doors inside RVs, campers or tiny homes where a compact, easy-to-use lock is required. What to check before buying Confirm your door thickness is between 18 mm and 35 mm. Confirm the lock’s size and design match your door’s cutout and mounting options. This lock provides a straightforward, durable solution for privacy and secure closure in RVs, trailers, boats and other compact living spaces.