This is the National flag of Tibet and comes in 3 sizes.  It is a prison sentence if you own one of these in Tibet and these are often used each year on the Tibetan Uprising Day each year on 10th March.

Large  -  124cm x 90 cm ( 4 ft x 3 ft ). The left hand side has 2 reinforced eyelets to attach to a flag pole or tie to a stick. 

Medium -  50cm x 40 cm (20" x 16"). The left hand side has been stitched so that it may be displayed or carried on a stick or pole.

Small  - 27cm x 20 cm (10.5 inches x 8 inches). The left hand side has been stitched so that it may be displayed on a small stick or pole.

The Symbols on the Tibetan National Flag:

•     The yellow border of the flag represents the teachings of Buddha in all directions.
•     In the centre of the national flag is a mountain with snow lions, which represents Tibet.
•     The 6 red bands are the original tribes called Se, Mu, Dong, Tong, Dru and Ra who were the ancestors of the Tibetan people. The blue bands are the sky.
•     The sun shining in all directions signify the enjoyment of freedom, spiritual and material happiness along with prosperity of all beings in Tibet.
•     On the slopes of the mountain stand a pair of snow lions which signify a spiritual and secular life.
  The glowing three coloured jewel represents the respect of Buddha, Dharma and Sangha.
•     The two coloured jewel represents the peoples’ guarding and cherishing self discipline by the practices of the ten exalted virtues and the 16 humane modes of conduct.