A playball made of translucent plastic and illuminated for play in the dark by an insertable and removable chemi-luminescent device known as a light stick. The weight of the light stick is less than 1% of the weight of the ball. The ball includes a self-closing valve whereby the ball may be inflated and deflated in conventional manner. The light stick just prior to use is activated and then inserted through a preformed passage in the uninflated ball. The inserted light stick is supported radially within the ball by a thickened inwardly extending translucent plastic post that is integral with the ball wall. Subsequent inflating of the ball to playing pressure causes the compressible post to grip the light stick tightly enough to prevent expulsion during use. Thereafter when an exhausted light stick is to be replaced, the ball is deflated to release the grip of the post, the ball is manually collapsed to bring pressure against the interior end of the light stick thereby forcing it out of the ball far enough to be gripped by hand and pulled out. A new activated light stick may then be inserted so that play may resume.
