In the UK (and by arrangement in Europe) Xenophobe’s® Guides supply three types of point of sale display units, two counter versions and a tower:
4 or 5-tier acrylic tower spinner
8 pockets per tier, each holding
4 books
Total = 128 books for a 4-tier
and 160 books for a 5-tier
Height: 1700mm (5′ 6″)
Base diameter: 560mm (1′ 8″)
Diameter: 280mm (10″)