Silver Curved Tube Bead

tube bead
(Tube beading) Tube beading is a metal forming process that forms a bead on the end of a tube. Tube beads can be used to help hold a hose on the end of a tube or to strengthen the end of the tube. There are two forming processes: internal roll forming and ram forming.

silver
Coat or plate with silver
Provide (mirror glass) with a backing of a silver-colored material in order to make it reflective
(esp. of the moon) Give a silvery appearance to
coat with a layer of silver or a silver amalgam; "silver the necklace"
made from or largely consisting of silver; "silver bracelets"
a soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography

curved
having or marked by a curve or smoothly rounded bend; "the curved tusks of a walrus"; "his curved lips suggested a smile but his eyes were hard"
Having the form of a curve; bent
In mathematics, a curve is, generally speaking, an object similar to a line (geometry) but which is not required to be straight. Often curves in two-dimensional (plane curves) or three-dimensional (space curves) Euclidean space are of interest.
(Curving) In education, grading on a curve (also known as curved grading or simply curving) is a statistical method of assigning grades designed to yield a pre-determined distribution of grades among the students in a class.