Color: Black. Individual sales possible, but there will be shipping costs. I have about 50 sets of 3. Please refer to the photos for size measurements. Regarding the price: Smaller quantities can be sent in envelopes. The price will depend on the envelope size. For those purchasing in bulk: Please comment with the number of sets of 3 you want, and I can accommodate you. I will also list spare suction cups separately. Thank you. Since there will be shipping costs with simple envelopes, I'm thinking the best price is 400 yen per piece. In the summer, suction cups don't stick as well due to the heat, so please consider these as spares. I'm thinking of 1100 yen for 30 pieces (10 sets of 3).