Tubelining is a technique of ceramic decoration. It involves squeezing a thin line of clay body through a nozzle onto the ware being decorated. An alternative term is "slip

Slip (ceramics)

A slip is a suspension in water of clay and/or other materials used in the production of ceramic ware. Deflocculant, such as sodium silicate, can be added to the slip to disperse the raw material particles...

 trailing".

The skill takes time to acquire and it is associated with art pottery rather than mass production.

UK production

Tubelining has been used by a number of firms in the Staffordshire Potteries.
In particular, the Moorcroft

Moorcroft

Moorcroft is a British pottery manufacturer based in Burslem, Stoke-on-Trent, Staffordshire, which was founded by William Moorcroft.-History:...

 pottery continues to be well known for using tubelining as an integral feature of its designs.

USA production

Designers using tubelining included Frederick Hurten Rhead

Frederick Hurten Rhead

Frederick Hurten Rhead was a native of England who worked as a potter in the United States for most of his career. In addition to teaching pottery techniques, Rhead was highly influential in both studio and commercial pottery...

, who taught the technique at the Arequipa Pottery

Arequipa Pottery

The Arequipa Pottery was an Arts and Crafts pottery near Fairfax, Marin County, California, situated at the Arequipa Sanatorium. It was active from 1911 to about 1918....

in California.