Latin Percussion Hooped Conga Comfort Curve II - Z Series (Extended Collar) - Chrom - 11" Quinto | 5 hole (LP772A)Characteristics Comfort Curve 2: Comfort Curve describes the characteristcs of the profile. The bed of the head is welded into the hoop which minimises the gap between head and hoop. The head ring of Comfort Curve hoops is slightly outside the bed which helps centering the head during fitting. Profile: Comfort Curve 2 Width: Z Series (Extended Collar) 9,5 mm wider than X Series & Traditional Rim Material thickness: 4 mm Material: steel Crown (shell):