Note: This paragraph sandbags are hollow, need to fill their own, the proposed appropriate filling, if only the sand and other heavy things can not be filled too full, so as not to affect the of wall targets) wall sandbags and ordinary hanging First, the wall is easier to carry than sandbags, can be hung on the wall or on the stool; Secondly, the wall reaction force is the whole wall, relative to the weight of the sandbag can be more practiced Out of the penetration, because the wall will not be the as sandbags will be moved, the overall affordability greatly increased. Jeet Do have a lot of wall training content, Bruce during his lifetime also the wall as his main exercise tool. Bruce was also often put 2-3 sandbags upright (known as: two cut, three cut), or multiple sandbags hanging on the wall, respectively, filled with sand, gravel, beans, steel scrap or Iron sand, etc., and then were hit to experience fist hit different objects in different senses, is, playing in different positions when the human body . Stick sandbags is the equipment to exercise fist, the of wall stickers can exercise a variety of boxing boxing, as as 's fist is the first practitioners face sandbags to maintain about 17 inches or 45 cm or so and then the elbow Force hair punch when the body must be relaxed arm muscles can not tighten the first to play fifty fist enough, if fist pain immediately stop playing kicking sandbags is a more advanced skill exercise can kick sandbags in the exercise footwork especially 's three feet must be breath with the foot to play a series of links to try to keep the balance of the body do not let foot landing Colour:Creamy white Material:canvas Size:40 x 40cm Weight: 160 g Package Contents: 1 x Empty sandbag Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.