10′ straight length. 99% pure copper. I.D. measurements apply to type L water pipe. Type L: Heavy wall for general plumbing and heating purposes. No. LH03010: Size: 3/8″ ID x 10′, Type: L No. LH04010: Size: 1/2″ ID x 10′, Type: L No. LH06010: Size: 3/4″ ID x 10′, Type: L No. LH10010: Size: 1″ ID x 10′, Type: L No. LH12010: Size: 1-1/4″ ID x 10′, Type: L No. LH14010: Size: 1-1/2″ ID x 10′, Type: L No. LH20010: Size: 2″ ID x 10′, Type: L