Hello i want to bound the object to be dragged only the border of the circle . i have provided the codepen in which small circle is bound to be dragged only inside circle but i want to bound it to be dragged only on the border this codepen is not but please modify this code alittle so that it meets my requirments thanks alot : ) See the Pen LYZBaoR by GreenSock (@GreenSock) on CodePen