Retro Cats Christmas Fireplace - Boxed Holiday Christmas Greeting Cards - Set of 10 Cards and Envelopes by 10%. Save 12 Off!. $14.95. Cards Measure 6.5" x 4.5". Clear Acetate Box. Printed in the USA. Inside: Warm wishes to you and yours this Christmas!. Box of 10 Cards & Envelopes. This is a brand new box of 10 holiday Christmas cards and envelopes. The cards measure 6 1/2 inches x 4 1/2 inches and are printed in the USA. Inside greeting reads: Warm wishes to you and yours this Christmas!