This viscous industrial strength piece is extremely durable. The high speed (5 foot) forward movement and opening mouth will startle the most brazen. Comes with monitor amp, cassette player, and tape of fierce alligator sounds. Requires A/C power and a 100-125 psi compressor, not included. Requires an 18' x 4' area for operation. Optional motion sensor available. Must ship by truck. Extra crating fees apply.