diff --git a/aruco/ArucoTag.h b/aruco/ArucoTag.h
index 453804a..9d41e37 100644
--- a/aruco/ArucoTag.h
+++ b/aruco/ArucoTag.h
@@ -33,10 +33,10 @@ public:
         // 18.96 w
         // 19.3 h
         this->objectRepresenation = cv::Mat(4, 1, CV_32FC3);
-        this->objectRepresenation.ptr<cv::Vec3f>(0)[0] = cv::Vec3f(-18.8f/2.f, 19.1f/2.f, 0);
-        this->objectRepresenation.ptr<cv::Vec3f>(0)[1] = cv::Vec3f(18.8f/2.f, 19.1f/2.f, 0);
-        this->objectRepresenation.ptr<cv::Vec3f>(0)[2] = cv::Vec3f(18.8f/2.f, -19.1f/2.f, 0);
-        this->objectRepresenation.ptr<cv::Vec3f>(0)[3] = cv::Vec3f(-18.8f/2.f, -19.1f/2.f, 0);
+        this->objectRepresenation.ptr<cv::Vec3f>(0)[0] = cv::Vec3f(-19.f/2.f, 19.3f/2.f, 0);
+        this->objectRepresenation.ptr<cv::Vec3f>(0)[1] = cv::Vec3f(19.f/2.f, 19.3f/2.f, 0);
+        this->objectRepresenation.ptr<cv::Vec3f>(0)[2] = cv::Vec3f(19.f/2.f, -19.3f/2.f, 0);
+        this->objectRepresenation.ptr<cv::Vec3f>(0)[3] = cv::Vec3f(-19.f/2.f, -19.3f/2.f, 0);
 
 /*        this->objectRepresenation.ptr<cv::Vec3f>(0)[0] = cv::Vec3f(-19.5f/2.f, 19.7f/2.f, 0);
         this->objectRepresenation.ptr<cv::Vec3f>(0)[1] = cv::Vec3f(19.5f/2.f, 19.7f/2.f, 0);