Bol-Dog is a perfect company if you are looking for a seasonal or holiday-themed leash or collar or just in a search for fresh and unique patterns. You can pick the type of the collar, the width and the length of the leash and even order a matching tag which is a great idea. :)
As in case of most of the handmade, designer products, expect the carabiner to be a little lighter and smaller than the ones sold from a hiking gear company. I don’t think they are weaker, but it can be a little harder to attach it to a harness or collar if your dog is usually bouncing around before heading out for a walk.
I like their attention to details - even the buckles they use are branded. The buckles are strong and they are easy to handle - not like some of the thinner ones which can be hard to get off after a cold winter walk.
I used their product for a while and never had any quality issues. The materials are durable, it doesn’t fade out on the sun and you can just handwash them with some soap or put it in your washing machine if needed.
You can find their product list and all information on their English website.
I love that their website has detailed guides to help you choose the best type of collar (martingale, flat, etc) and they also give you the options to pick how wide the collar or the leash should be. You can buy these separately or as a matching set.