The Goblet handle has options for 24mm knots and 30mm knots.
24mm Handle Dimensions:
Height: 50mm; Thickest Part: 38mm; Thinnest Part: 20mm
30mm Handle Dimensions:
Height: 67mm; Thickest Part: 37mm; Thinnest Part: 23mm
*The overall loft for the 30mm boar knot is now 82mm, so at standard depth, a boar brush will have a loft of approximately 72mm.