IST WR1 Medium Size Underwater Writing Slate 5 x 6 (12.5 x 15cm)

IST WR1 Medium Size Underwater Writing Slate 5 x 6 (12.5 x 15cm)The IST WR1 Medium Size Underwater Writing Slate 5 x 6" (12.5 x 15cm) is a simple but very useful diving and pool accessory to keep on h...