A lacrosse stick or crosse is a long handled racket that is used in the sport of lacrosse to handle the ball and to strike at opposing players. The head of a lacrosse stick is roughly triangular in shape and it is strung with loose netting that allows the ball to caught, carried and thrown.
The Head of a lacrosse stick is the part used for handling the ball. Players catch, throw and cradle with the ball in the head of the stick. The head is usually made of plastic, but some players prefer traditional wooden sticks whose heads are comprised of a hook-shaped extension of the handle and wall of woven cord called a gut wall. Plastic is the general common term for a wide range of synthetic or semisynthetic organic solid materials suitable for the manufacture of industrial products the pocket will be determined illigal if the ball is placed in the pocket and the top surface of the ball is under the sidewall. The differences between men's and women's lacrosse sticks are found mostly in the head; men's stick heads may be from 4 to 10 inches wide according to ILF rules, or 6. International Lacrosse Federation was founded in 1974 to promote and develop the game of men's Lacrosse throughout the world 5 to 10 inches wide according to US Lacrosse and NCAA rules. US Lacrosse is the national governing body of men and women's Lacrosse in the United States. The National Collegiate Athletic Association ( NCAA, often pronounced "N-C-Double-A" is a voluntary association of about 1200 institutions conferences organizations The goalie's stick may be up to 15 inches inside measurement at its widest point (ILF) or 10 to 12 inches wide (US Lacrosse and NCAA). The sidewalls of sticks in Men's Lacrosse may not be more than 2 inches tall. Lacrosse sticks may be strung with mesh or leathers and nylon strings to form a pocket. A mesh is a flat semi-permeable barrier made of connected strands of Metal, Fiber, or other flexible/ductile material In field lacrosse, the pocket of the crosse is considered illegal if the top of the ball, when placed in the head of the stick, is below the bottom of the stick's sidewall. 
US Lacrosse Rules dictate that the head of a woman's stick may be from 7 to 9 inches wide, and must be strung traditionally, with a pocket formed by a grid of leather strings (no mesh is permitted); however, the goalkeeper's stick head may be up to 12 inches wide and is allowed to be strung with mesh. The top of the ball, when placed in the pocket, must remain above the sidewall. Also, women's lacrosse usually features much more colorful heads.
Many people customize their heads by coloring the mesh and/or strings or dying the actual plastic head. Mesh and strings are sold in various colors so customizing a head this way is easy, however if one wishes to dye the head they would either need a custom job done or they would need to do it themselves.
Modern handles, more commonly referred to as shafts, are mostly hollow metal or composite. They are usually octagonal, instead of round, in order to provide a better grip. Most are made of aluminum, titanium, scandium, or alloys, but some shafts are still made from other materials, including wood. Hollow metal handles must be covered with tape or a plug (commonly referred to as the "butt" or "butt end"), usually made of rubber, on the exposed end. Women's lacrosse handles are usually longer than those found in men's lacrosse, since regulations limit the length of men's sticks (including the head) from 40 to 42 inches (52 to 72 inches for defensemen), while women's sticks can be 35. 5 to 43. 25 inches long.
Offensive players' lacrosse sticks are often as short as possible, because of the offensive advantages of a short stick. Men's defensive sticks, however, are usually as long as the rules permit, to allow a defenseman to stay further away from the player he is covering while still playing defense effectively.