Clip-in hair extensions are one of the easiest ways to add length and volume without a salon appointment or permanent changes. What are Clip-In Hair Extensions? Clip-in hair extensions are pre-made hair wefts with small snap clips sewn along the top edge. Clip-In Hair Extensions Cost and PricingClip-in extension prices vary based on hair type, length, weight, and quality. Clip-In Hair Extensions Care TipsThese care tips help keep clip-in extensions smooth and long-lasting:Wash only when needed: After roughly 15–20 wears, or when there’s product buildup, odor, or tangling.