Hudson’s Extra Tier for the 4 Foot Dumbbell Rack is angled to be uniform with the other tier’s on the dumbbell rack. All tier’s will be on an upright angle for easy racking and unracking of dumbbell weights. Hudson’s compact design is perfect for smaller dumbbell sets and accommodates almost all styles of dumbbells. Hudson’s Extra Tier for the 4 Foot Dumbbell Rack can easily be removed or attached as per the user’s perference. Hudson’s Extra Tier 4 Foot Dumbbell Rack is built to last, even under the most strenuous workout routines.