The Konstruk-Tubes tubular building set was created in 2006 by Keith S. Lock of Bradenton, Florida

Bradenton, Florida

Bradenton is a city in Manatee County, Florida, United States. The U.S. Census Bureau estimated the city's 2007 population to be 53,471. Bradenton is the largest Principal City of the Bradenton-Sarasota-Venice, Florida Metropolitan Statistical Area, which had a 2007 estimated population of 682,833...

. Keith Lock, a paramedic

Paramedic

A paramedic is a healthcare professional that works in emergency medical situations. Paramedics provide advanced levels of care for medical emergencies and trauma. The majority of paramedics are based in the field in ambulances, emergency response vehicles, or in specialist mobile units such as...

, invented the toy

Toy

A toy is any object that can be used for play. Toys are associated commonly with children and pets. Playing with toys is often thought to be an enjoyable means of training the young for life in human society. Different materials are used to make toys enjoyable and cuddly to both young and old...

 after seeing his children play with some PVC pipe and fittings.

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The basis of the set is simple, Polypropylene

Polypropylene

Polypropylene , also known as polypropene, is a thermoplastic polymer used in a wide variety of applications including packaging, textiles , stationery, plastic parts and reusable containers of various types, laboratory equipment, loudspeakers, automotive components, and polymer banknotes...

tubes and connectors. Lock added some unique designs to his connectors however. Basic shapes such as 90 degree elbows and Tee connectors are used, but more complex and specialized connectors are implemented as well, enabling a more diverse set of constructions than with just the simple shapes.

The toy has been accepted by the Manatee County school district in Florida and will be in every elementary school in that county.

Lockmade LLC. (based in Bradenton, Florida) owns the Konstruk-Tubes brand.