i found this light very fiddly-you have to load in the batteries, which are tiny little flat discs, that have to lie on top of each other inside the tube. beware-it is very dangerous if one drops on the floor and your pet swallows it. when I finally managed to do this, the two parts of the 'bone' would not screw back in to each other-so the item was useless. what a pity as it is an attractive colour-but you could not go through this every time you changed the batteries. With the middle bit also being so badly made, there is a real danger it could come apart and then the batteries would drop out and you wouldn't see where they all went, especially in the dark- being a big danger to any child or animal if swallowed. I have yet to come across a strong, durable, easy and long lasting light for my dogs collar! why is it so difficult!Read full review
Verified purchase: No
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