These are gifts. The yellow one has bite marks. The red one has only been tried on. The length is adjustable. We won't be using these, so if anyone would like them, please take them. I think they can be used for both small dogs and cats. A set of a yellow leather-look collar with stone decorations and a red and black striped harness. - Collar: Yellow - Decoration: With stones - Material: Leather-look - Size: Adjustable - Design: Flower motif - Harness: Red and black stripes - Type: Harness Thank you for looking.