Based on this product's specifications, here are some alternatives and similar models
RoGer chain connector NC-1 — ball chain coupling for hanging and securing fittings
Summary description:
RoGer NC-1 is a ball-chain connector designed to join or terminate ball (bead) chains used for hanging, adjusting or securing small fixtures and fittings. The compact NC-1 connector provides a simple mechanical coupling for lightweight applications such as lamp pulls, blinds, signage or decorative chains. Compatible with standard ball chain sizes; easy to install without tools.