This building block set is presented as a collection of interlocking plastic construction pieces with integrated window inserts.
A modular square form defines the building block set as a contained multi-piece construction unit. Interlocking edges and window-shaped center panels form the clearly identifiable features.

Manual assembly allows the building block set to connect and separate as intended.
Physical connection between edges occurs through applied hand pressure.
Movement and structure remain dependent on user assembly during use.
These combined characteristics lead naturally to the details below.

• Building block set with window-frame design

• A single building block set presented as one complete unit

• Interlocking outer edges surrounding a central window insert

• Manual connection activated during assembly

• Connection occurs through physical pressure between pieces