Boy WD-Series Magnetic Cleaner with Thermometer The Boy WD-Series magnetic cleaner is designed to clean aquarium glass (up to 12 mm) without damaging the glass. Equipped with a digital thermometer to determine the temperature anywhere inside the aquarium. When the external part is detached, the submerged part floats for easy removal from the aquarium. Sizes:

• Small: 10.4 × 4.3 × 6.2 cm
• Medium: 11.4 × 4.7 × 6.8 cm
• Large: 12.85 × 5.3 × 7.4 cm