Based on this product's specifications, here are some alternatives and similar models
Kickboard swimming board comfy PPCCKICK10 — foam kickboard for swim training, multicolor
Summary description:
Kickboard comfy PPCCKICK10 is a foam swimming board designed for kick training and swim technique practice. Lightweight and buoyant, it provides leg and core support during laps, enabling focused kicking drills, endurance workouts and beginner swim lessons. Multicolor design aids visibility in the pool and suits group sessions and swim schools.