Based on this product's specifications, here are some alternatives and similar models
Swimming Arm Bands JiLong children's floaties crab design 26×22 cm model 32206
Summary description:
Children's swimming arm bands by JiLong, model 32206, featuring a crab design and outer dimensions of 26×22 cm. These inflatable floaties are intended to assist young swimmers with buoyancy at the arms, helping build confidence and basic swimming skills. Suitable for supervised pool and open-water play and training for early swimmers.