Promotional 10cm Optical Crystal Golf Ball on a Clear Crystal Base The Golf Ball on clear bases are very effective and stylish, the ball spins freely on the base having been hand crafted out of perfectly clear optical crystal. They are available in 4 sizes and are ideal awards or prizes that can be personalised on the base with any club crest, logo or wording to create a gift that is sure to take pride of place when put on display. They are supplied in a black foam lined presentation box.