I was looking for a treasure chest for my grandson but couldn't find it. My husband cut out a coin slot at the top and slightly enlarged the opening in the latch. Then I bought a 3 Series Honbay. Vintage Antique Mini Locks Archaize Padlocks Keylock with Key. Fit and size were perfect. The problem we had with the chest was the smell. A very unpleasant odor emanated from the inside of the chest. It took us a while to soften this up with everything we could think of. We ended up using lemon oil repeatedly. Definitely give it a few days soak when you buy it.