Tantrix Games 1997.
(holder and 10 plastic hexagonal pieces, 1.6 by 2.25 by 2.25 inches high)

Ten hexagonal tiles (numbered 1 through 10 on the backs) can be arranged in patterns, the highest level challenge being to make a loop of a given color (and matching edges of all adjacent tiles). The two sets shown above have different holders and background color, but the same tile patterns. Below, on the right are excerpts from the directions that came with the puzzles and on the left three ten tile loop solutions that are presented on Jaap's Page together with solutions to related puzzles (yellow and blue are switched from the sets shown here).

Further reading:
Jaap's Page, from: http://www.jaapsch.net/puzzles/tantrix.htm
Tantrix Home Page, from: http://www.tantrix.com