Tick-repellent dog collar made of paracord & EM ceramics. As these are handmade creations, slight variations are possible from one model to another. Length: - 25cm adjustable up to 30cm - 30cm to 35cm - 35cm to 40cm - 40cm to 46cm Colors: Sky blue / Turquoise Protect your four-legged companion from ticks with our collars featuring EM ceramics. Designed to provide effective protection while being environmentally friendly, these innovative collars use effective microorganism (EM) technology to repel ticks. By choosing our collars with EM ceramics, you opt for a natural & effective solution to protect your dog from ticks. Offer them the best while preserving their well-being and the environment. Instructions for use: Rinse the collar under clear water to activate the ceramics and repeat the process every two weeks. Enjoy the sun if there is any to dry the collar.