Classic Tray Series features a Drawtite? latch, Tip-Guard? tray supports and all-weather, worm-proof materials. Tongue-and-groove construction between lid and base yields water-resistant design and precision fit. Each includes removable dividers for enhanced storage capabilities. Varied tray depth for greater capacity options. 6181PK - Box features tongue and groove construction, Drawtite latch, TipGuard tray supports and all-weather worm proof materials.