Based on this product's specifications, here are some alternatives and similar models
Balloon Papstar 190 mm diameter, natural latex, assorted colors, single piece
Summary description:
Papstar balloon made from natural latex with a 190 mm diameter (approx. 600 mm circumference when inflated). Supplied as a single piece in assorted colors. Designed for decorations, parties and events; suitable for inflation by air or helium and for short-term indoor and outdoor use.