Classic Knob Curtain Holdback This Holdback set includes a pair of Knob Finial Holdback. Each Knob finial measures: L 2.1" x H 1.8" x D 1.8". Projection: 3.5 inches. Material: Metal j-hook/resin finial. Dimension: 6"Lx4"Wx4"H Weight: 0.6827392 Lbs.