Spring Hair Pin

Abstract

A spring hair pin for attaching hair extension comprises a U-shaped body comprising a base and two sides extending from the base; a band that connects the two sides of the body; a plurality of teeth extending from the base; a first sheath that surrounds the band; and a plurality of second sheaths that surrounds the teeth. The first sheath and the second sheaths are made of silicone rubber. The tooth comprises a free end, a base end and a first groove and a second groove between the free end and the base end, wherein the first groove and the second groove receive the second sheath.

1 . A spring hair pin for attaching hair extension comprising:
 a) a U-shaped body comprising a base and two sides extending from the base;   b) a band that connects the two sides of the body;   c) a plurality of teeth extending from the base;   d) a first sheath that surrounds the band; and   e) a plurality of second sheaths that surrounds the teeth;
 wherein the spring hair pin is kept between an open position and a closed position, wherein the distance between the band and the teeth is bigger in the open position than in the closed position, wherein the first sheath and the second sheaths are made of a flexible material. 
   
     
     
         2 . The spring hair pin of  claim 1 , wherein the body, the band and the teeth are made of spring metal, wherein the conversion between the open position and the closed position are performed by pushing the teeth toward the band. 
     
     
         3 . The spring hair pin of  claim 2 , wherein the second sheaths contact the first sheath in the closed position. 
     
     
         4 . The spring hair pin of  claim 3 , wherein each of the teeth comprises a free end, a base end and a first groove and a second groove between the free end and the base end, wherein the first groove and the second groove receive the second sheath. 
     
     
         5 . The spring hair pin of  claim 4 , wherein the second sheath does not protrude beyond the width of the free end of the tooth. 
     
     
         6 . The spring hair pin of  claim 5 , wherein the tooth is inserted into the second sheath, wherein the second sheath is heated and then cooled, wherein the second sheath contracts as it is cooled down whereby the second sheath tightly surrounds the tooth. 
     
     
         7 . The spring hair pin of  claim 6 , wherein the flexible material comprises silicone rubber. 
     
     
         8 . The spring hair pin of  claim 7 , further comprising a hair extension comprising a hair extension band and a plurality of hair strands fixed to the hair extension band, wherein a plurality of spring hair bands are fixed to the hair extension band.