Based on this product's specifications, here are some alternatives and similar models
Necklace with Leash KINK D-240791 adjustable 38–49 cm 1 ring
Summary description:
KINK D-240791 is a necklace-style collar with an integrated leash connection, adjustable from 38 to 49 cm and fitted with a single ring. Designed for controlled handling, it suits walking, training or short-term restraint. The adjustable length offers a customizable fit; the single ring provides a secure attachment point for a leash or lead.