Button closureNovel design: the fake collar has no sleeve, they are in delicate design, easy for you to put on and off, and both sides have extended strap, you can put arms into and fix fake collar position with a pinMeasurement: the neckline perimeter is approx. 39 cm/ 15.3 inches to 42 cm/ 16.5 inches, the collar shoulder in is approx. 36 cm/ 14.1 inches in width, to 37 cm/ 14.6 inchesSoft material: made of quality , which is skin-friendly and breathable, easy to wash and doesn"t fade, comfortable for you to wear in daily lifeWide applications: the versatile detachable collar is a good decoration for sweaters, dresses, uniforms, jackets and other casual clothes, make you look formal and elegantQuantity: the package includes 2 pieces of false collar; Note: collar can be ironed with iron machine, but the temperature of iron should not be too high